{"product_id":"fastronix-solutions-300a-battery-disconnect-switch-1-2-copper-stud-severe-duty-with-face-plate-12v-continuous-isolation","title":"Fastronix Solutions 300A Battery Disconnect Switch 1\/2\" Copper Stud — Severe-duty with Face Plate, 12V Continuous Isolation","description":"\u003cp\u003e\u003cstrong\u003eFastronix 300A 1\/2\" Severe Duty Battery Disconnect Switch with face plate is a heavy-duty master battery switch engineered for reliable 300A continuous service and quick isolation of 12V systems.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eBuilt for demanding electrical setups, this disconnect combines a robust 1\/2\" copper main stud rated to 300A continuous (and 2000A intermittent) with an index-pin that prevents rotation after installation. It accepts single- or dual-pole wiring, offers auxiliary studs for indicator lights or small accessories, and installs neatly with an included face plate. The switch is compatible with Fastronix 404-116 terminal covers for a finished, professional appearance.\u003c\/p\u003e\n\n\u003ch3\u003eHow durable is this switch for high-current 12V systems?\u003c\/h3\u003e\n\u003cp\u003eThe Fastronix 300A switch uses 1\/2\" copper main studs designed for continuous 300A at 12VDC and can tolerate 2000A intermittently, making it suitable for heavy loads and starter battery isolation. The severe-duty construction resists wear in harsh environments and the indexed mounting prevents terminal rotation under vibration.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e1\/2\" copper main studs rated 300A continuous at 12VDC\u003c\/li\u003e\n  \u003cli\u003e2000A intermittent current capacity for short bursts\u003c\/li\u003e\n  \u003cli\u003eIndex pin locks orientation to stop post-connection rotation\u003c\/li\u003e\n  \u003cli\u003eSevere-duty materials for rugged and mobile applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I use it for single-pole and dual-pole applications?\u003c\/h3\u003e\n\u003cp\u003eYes — the design supports installation as either a single-pole master cutoff or a dual-pole switch depending on wiring needs. That flexibility lets you isolate one battery or both sides of a circuit without changing the core hardware.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eConfigurable single- or dual-pole wiring\u003c\/li\u003e\n  \u003cli\u003eSame main studs handle both configurations for fewer parts\u003c\/li\u003e\n  \u003cli\u003eMaintains rated amperage in either wiring setup\u003c\/li\u003e\n  \u003cli\u003eFace plate simplifies panel mounting and appearance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat auxiliary connections and accessories are supported?\u003c\/h3\u003e\n\u003cp\u003eThe switch includes smaller auxiliary studs rated to 20A at 12VDC for indicator lamps, ignition interlocks, or small accessory circuits. For a polished installation, pair the unit with Fastronix 404-116 terminal covers to protect connections and tidy the terminal area.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAuxiliary studs rated 20A@12VDC for lights or small devices\u003c\/li\u003e\n  \u003cli\u003eCompatible with Fastronix 404-116 terminal covers for safety\u003c\/li\u003e\n  \u003cli\u003eFace plate keeps wiring accessible but neat\u003c\/li\u003e\n  \u003cli\u003eIdeal for indicator or control circuits tied to the main cutoff\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the face plate and mounting design help installation?\u003c\/h3\u003e\n\u003cp\u003eThe included face plate provides a finished look and straightforward panel mounting, while the index pin ensures the switch stays aligned once tightened. Together these features reduce installation time and minimize the chance of loose or rotated connections in mobile and fixed installations.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFace plate offers clean panel integration and mounting stability\u003c\/li\u003e\n  \u003cli\u003eIndex pin prevents post-installation rotation of the switch body\u003c\/li\u003e\n  \u003cli\u003eWorks with optional terminal covers for added protection\u003c\/li\u003e\n  \u003cli\u003eDesigned for quick retrofit or new-panel installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: technicians, fleet managers, boat owners, RV builders, and anyone who needs a dependable heavy-duty battery isolation switch for 12V systems. If you require a rugged, high-current disconnect with a neat panel finish and the option to add indicator circuits, the Fastronix 300A 1\/2\" Severe Duty Battery Disconnect Switch delivers the capacity, flexibility, and installation-friendly features professional installs demand.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What current ratings does this switch support?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Main studs are rated 300A continuous at 12VDC and 2000A intermittent; auxiliary studs are 20A at 12VDC.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does it come with a face plate and protection options?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, it includes a face plate and is compatible with Fastronix 404-116 terminal covers for terminal protection.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Fastronix Solutions","offers":[{"title":"Default Title","offer_id":48083982418078,"sku":"B07L2JRHRQ","price":87.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/fastronix-front-faceplate-mounted.jpg?v=1785842173","url":"https:\/\/northtrailauto.ca\/products\/fastronix-solutions-300a-battery-disconnect-switch-1-2-copper-stud-severe-duty-with-face-plate-12v-continuous-isolation","provider":"North Trail Auto","version":"1.0","type":"link"}